Buildbot parsing Python Unit test results

Question

I have a test suite that outputs test results in the Python Unit Test format: http://docs.python.org/library/unittest.html

Is there an existing Buildbot module/plugin that can parse this form?

Example:

DigitalReadWrite_02                                         ... ok
DigitalReadWrite_03                                         ... ok
DigitalReadWrite_04                                         ... ok
PWMoutput_02  (PWM=128 50% LOW 49% HIGH)                    ... ok
PWMoutput_03  (PWM=128 50% LOW 49% HIGH)                    ... ok
PWMoutput_04  (PWM=128 50% LOW 49% HIGH)                    ... ok
--------------------------
Ran 6 tests in 1.652s

OK

I've written a custom parser, but it's only got the basic cases. Is it worth the effort to make it comprehensive for all flavors of Python Unit test format.